Posted by **Sam** on Thursday, October 7, 2010 at 12:24am.

find the surface area of a right prism with the given features: The bases are trapezoids with bases of lengths 6 and 10 perpendicular to one side of the length 12 ; height = 12

Round the answer to the nearest square unit

- geometry -
**drwls**, Thursday, October 7, 2010 at 11:26am
The prism has six sides. The two trapezoidal bases have areas of 8*12 = 96, each

The four rectangular sides have areas

12*6, 12*10, 12*12 and 12*sqrt(160)

I used the Pythagorean theorem for the last one.

Add up the areas.

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